A percolation test (colloquially called a perc test) is a test to determine the water absorption rate of soil (that is, its capacity for percolation) in preparation for the building of a septic drain field (leach field) or infiltration basin. For better, more conclusive results, five drill holes are used in a pattern of one hole at each corner of the proposed leach field and one test hole in the center. This website uses cookies to ensure you get the best experience on our website. But in many cases, you’ll still want to be fully informed about the property’s “percability” BEFORE you invest your life’s savings into it. Coarse sand and gravel will have a extremely fast percolation rate. Whatever the situation – remember that the rules and regulations can be very different depending on where your property is located, so before you take any big steps forward, make sure you learn how it’s supposed to be done directly from the source. In my experience… I’ve found that even though most county health departments adhere to the same general principles of how a perc test works, many of them handle certain aspects of the process quite differently. In its broadest terms, percolation testing is simply observing how quickly a known volume of water dissipates into the subsoil of a drilled hole of known surface area. Start asking some questions to determine what alternatives might be available…. A percolation test consists of digging one or more holes in the soil of the proposed leach field to a specified depth, presoaking the holes by maintaining a high water level in the holes, then running the test by filling the holes to a specific level and timing the drop of the water level as the water percolates into the surrounding soil. What kinds of alternatives were allowed if the perc test failed. You do the test until the times stabilize. in 24 hours, Course sand or gravel                                                                    5 gallons, Fine sand                                                                                        4 gallons, Sandy loam                                                                                   2.5 gallons, Sandy clay                                                                                     1.7 gallons, Clay with considerable sand or gravel                                          1.1 gallons, Clay with small amounts of sand or gravel                                     .8 gallons. It Will Change Yours Too. A home percolation test is a simple way to measure how quickly your soil drains and to determine how much area you need to infiltrate the greywater. While every jurisdiction will have its own laws re… Most people however, buy vacant land because they intend to build something on it… and even if your don’t intend to build anything, there’s a fair chance that at some point in the future, the next buyer down the line will. 083: “If Only I Had Known!” – What Every Rookie Land Investor Ought to Know, 082: How to Rezone Properties for Huge Profits w/ Mike Marshall, 081: How to Negotiate Like a Pro w/ Kris Haskins. 086: Is It Too Late For You to Get Started in Real Estate? The contaminants expelled from this waste water is then trapped and eliminated in the soil. Percolation tests, or perc tests, measure percolation rates. If these first steps fail, it may be worth considering a. This test is performed until the 1 inch water drop times stabilize, usually 4-5 times. This is what this means for the design of a leach field. Perc tests are required in just about every civilized municipality in the world – because the results of this test provide crucial information needed to design and install a septic system. How To Write Real Estate Ads That Sell Properties Fast, 50 Websites To Post Your Real Estate Listings For FREE, Everything You Need To Know About Getting Your County’s “Delinquent Tax List”, 10 Rock-Solid Reasons Why You Should Be Investing In Land, 50 Surprisingly Creative Uses for Vacant Land, Hard Money 101: Everything You Need To Know About Getting Started With Hard Money Loans, A Crash Course in Tax Lien & Deed Investing (and My Love/Hate Relationship With Both). Depending on the price you’re paying for a property, it may or may not be worth the extra time and trouble of performing a perc test. The number of holes can range from 2 on up. Soil laboratory professionals usually measure percolation rates in terms of minutes per inch, typically in the context of septic tank testing. Depending on the Health Department’s requirements, the location of the property, the building plans and the makeup of the soil – a perc test can be very simple and inexpensive, or it can be somewhat complicated and costly. This video portrays what one of the more “complicated” versions of a perc test looks like…. Perc test in front of the house stabilized at 57 minutes  leach field required 450 ft trench length. That being said, if you’re willing to tolerate some risk in the equation, there are other clues you can look for that will give you a halfway decent idea as to whether or not you need to worry about this. If the soil conditions on the right side of the house contain a lot of clay and the soil on the left side of the house contains sand the design for a leach field on the left side of the house would be smaller and cost less. That's how my business works and yours can too. Are there any houses on these adjoining properties? We promise you will find ample value from our website. This is what the “unscientific” approach looks like…. From the cross board you place a screw or nail 5 inches up and another one 1 inch above the first one. When there isn’t an existing sewer system nearby, that’s when you’ll need to explore the feasibility of a septic system. That being said, if you’re just looking for a vague indication of a property’s ability to percolate, you don’t necessarily need to spend $1,500. There are various empirical formulae for determining the required size of a leach field based on the size of facility, the percolation test results, and other parameters. This means the times have stabilized. The size and use of the building will dictate the size of the proposed leach field and the size of the leach field dictates the number of test holes required. Get Free Access to Videos, Guides, Downloads and More! If you’ve gotten to the point where you’re ready to hire a pro to evaluate your property, all you need to do is call your county Health Department (just Google the county name and then “Health Department” to find their phone number) and ask them what the requirements are to properly conduct a perc test.


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